[BUG] Unhandled Reorg on Blast Sepolia hangs and eventually causes RPC errors

[ind-igo]

Running Ponder on blast sepolia on two different instances got the following error.

First instance was restarted and has not had any issue since.

The second instance stayed running (to get more info on bug). Eventually encounters InvalidInputRpcError:

[typedarray]

Thanks for reporting. This could be a Ponder bug, but my best guess is that the RPC provider had intermittent outage/instability. If you run this curl request:

curl -X POST https://sepolia.blast.io \
-H "Content-Type: application/json" \
-d '{
    "jsonrpc": "2.0",
    "method": "eth_getBlockByHash",
    "params": [
        "0xb5a5ff05569d3aeedf7ffc9179784ab3d3488c0fc150e0abe317a2d752ff3d08",
        true
    ],
    "id": 1
}'

It returns a block at height 12905654. However, the explorer shows a different canonical block at that height.

Hard to say in retrospect because explorers don't often store forked blocks / reorgs for L2s, but it kinda looks like there was a large reorg as the initial error suggests. Will give this some more thought.